Slider Cover Body Gap Structure for Impact-Resistant Assembly
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Solution Overview
Problem
Existing sliders with cover bodies face issues of poor impact resistance and assemblability due to deformation challenges when the cover body thickness increases or decreases, leading to potential breakage and assembly difficulties.
Innovation Solution
The slider design includes a body with first and second column portions, a pull tab pivot, and a cover body with specific gap configurations between abutting and abutted portions, ensuring that larger gaps are between the cover body and the column portions, allowing for stable assembly and distributing impact loads effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the cover body is made thin to improve assemblability, then the assemblability is improved, but the cover body may be excessively deformed and broken when applied with an impact
Solution Approach 1:
The patent introduces a gap dimension between the cover body and the slider body to resolve the contradiction. By creating a spatial separation (gap) in the vertical dimension, the cover body is prevented from contacting the slider body during assembly, allowing the use of thinner cover bodies without risk of deformation or breakage during assembly operations.
Solution Approach 2:
The gap acts as an intermediary space that mediates between the cover body and the slider body. This intermediate space prevents direct contact and potential damage during assembly, while still allowing the cover body to perform its protective function when needed.
2Strength
If the cover body thickness increases to improve impact resistance, then the impact resistance is improved, but the cover body is hard to be deformed when pressed, resulting in poor assemblability
Solution Approach 1:
The patent resolves this contradiction by introducing a vertical gap dimension between the cover body and slider body. This allows the cover body to be made thicker for improved impact resistance while the gap prevents contact during assembly, maintaining good assemblability despite the increased thickness.
3Ease of manufacture
If the cover body is made thin, then the assemblability is improved, but the cover body may be excessively deformed and broken when applied with an impact
Solution Approach 1:
The patent introduces a vertical gap dimension that allows thin cover bodies to be used without risk of assembly damage. The gap prevents contact between the cover body and slider body during assembly, enabling the use of thinner, more easily assembled cover bodies while maintaining reliability through proper positioning.
Data Source
AI summary
A slider includes: a body; a pull tab; and a cover body. In a section orthogonal to a front-rear direction, at least a part of a gap between an abutting portion and a first abutted portion is smaller than a gap between a lower surface of an upper wall portion and a first facing wall upper surface portion, and at least a part of a gap between the abutting portion and a second abutted portion is smaller than a gap between the lower surface of the upper wall portion and a second facing wall upper surface portion.